COMPOSIE^. (composite FAMILY.) 439 



natisect iuto oblong^ obtuse lobules connected hy pannous loool. Corymljs 

 of few heads ; crown very short — July and August — Alpine Lebanon, 

 and Antilebanon to Anianus, Akherdagh, and northward. 



* * * * Heads .005 to .008 broad, discoid, yellow. 



t Heads with two kinds of Jioicerets, the mai'ginal pistillate, ^-dentate. 



4. P. teiiuilobum, Boiss. % .15 to .25, herbaceous above, 

 sparingly hairy ; stems usually corymbose. Leaves ohIong-Unear in 

 outline, .05 to .1 long, bipinnatipartite into linear-sid)ulate lobules; 

 primary segments ovate, 12-15 on each side. Corymb with lew heads, 

 as large as peas ; akenes with a short crown — June to August — 

 Alpine Lebanon and Antilebanon. 



5. P. saiitoliii<^»icles, DC. 5 ^^^rr. .3, crisp-velvety; stems 

 slender, wand-like, rather rigid, leafy below, 3-7-headed. Leaves 

 linear-oblong, bipinnatisect into orbicular-s2)athulate, decttrrent lobules ; 

 primary segments small, linear. Peduncles .1 or more long : crown 

 very short — May — Rocky places ; Sinai. 



1 1 Heads icith only perfect, ^-toothed floicerets. 



6. P. arg^enteum, Willd. If .3 to .4, appressed -silky, tufted : 

 stems ascending, leafy at base. Leaves ovate in outline, bipinnatisect 

 into oblong-linear, obtusish lobules, primary segments 5-7, lobules 3-7 

 in each segment ; the upper leaves much smaller. Corymb compact, 

 many -headed ; pedicels shorter than ovate-obconical heads ; akenes with 

 4-5, prominent ribs ; crown long-toothed — August — 



Var. tenuisectum, Boiss. Lobules of leaves linear — Alpine 

 Lebanon above Cedars and Ehedin. 



7. P. leucopliyllum, Boiss. et Haussk. % .3 to .45, woody 

 at base, many-stemmed, densely p)cinnous. Leaves ovate-cuneate, fan- 

 shaped, parted into 3 segments, subdivided into 3-5, obtuse, entire or 

 3-tootlied lobules ; upper leaves very small, linear-spathulate, nearly 

 entire. Corymb dense, many-headed, nearly umbelled ; pedicels about 

 as long as small, ovate heads ; akenes few ribbed, with a long-toothed 

 crown — Summer — Subalpine Amanus. 



38. MATRICARIA, L. Feverfew. Bdbimij. 



Heads many-flowered, radiate heterogamous, or discoid homoga- 

 mous. Involucre imbricated, scales scarious. Receptacle conical, 

 naked. Akenes nearly terete, back ribless, inner face with 3-5, 

 slender ribs, often bald or crowned in the same species — Annual 

 aromatic herbs, with finely dissected leaves, and rays, when existing, 

 white. 



* Heads radiate. 



1. M. Cliamoiililla, L. .2 to .4, glabrous, branching from 

 neck ; stems erect or diffuse. Leaves bipinnatipartite into linear- 

 setaceous lobules. Heads .01 broad ; receptacle long-conical, hollow ; 

 akenes bald, inner face 5-ribbed — May and June — 



Var. eoronata, J. Gay. Akenes of rays or of all flowerets with 

 a long, lobed crown — Coast to mountains at height of 1,000 m., and 

 interior table-lands. 



